intelligence_src_b35573840dfc5ce6da
- Source-provided label
- Publisher RSS metadata
- Evidence class
- mentioned in report
- Confidence
- Not reported
- Observed
- Sep 09, 2026 21:30 UTC
- Retrieved
- Oct 14, 2026 14:33 UTC
CVE-2026-77811 - Stored Cross-Site Scripting via Integration Template Asset in OpenSearch Dashboards
Bulletin ID: 2026-088-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 08/21/2026 13:00 PM PDT Description: Amazon OpenSearch Service is a managed service that makes it easy to deploy, operate, and scale OpenSearch clusters. We identified CVE-2026-77811, a stored cross-site scripting issue in the dashboards-observability plugin in OpenSearch Dashboards. Improper input validation in the integrations static file endpoint allows a remote authenticated actor with write permissions to OpenSearch Dashboards saved objects to upload a custom integration containing arbitrary JavaScript. When another user accesses the static file endpoint directly, the script executes in their browser session and can perform actions on their behalf, including making API calls to OpenSearch with their privileges. Affected products & versions: OpenSearch Dashboards dashboards-observability plugin (open-source, self-managed): - Affected: versions before 3.4 and versions before 2.19.6 - Fixed: versions 3.4 and 2.19.6 Amazon OpenSearch Service (AWS Managed): - Affected: versions before 3.3 - Fixed: fixed in all affected versions (via service software update) Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.
Reference details
- Source category
- research-report
- First reported
- Sep 09, 2026 21:30 UTC
- Last reported
- Sep 09, 2026 21:30 UTC
- Catalog updated
- Oct 14, 2026 14:33 UTC
- Record ID
46bce89997f847f23be6980dcde8ae3055c60a5108195668062da5d4020aab5f
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1 sources: 0 stale, 0 needing attention, 0 paused, 0 unverified.
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